Running, of course, isn't known for being a particularly scary sport. Sure, there are aberrations. Usain Bolt[3], for example, who is scary-fast; or this scary-gross video[4], recently featured in our Shoes & Gear blog. But overall, running is really pretty predictable and straightforward. No shocks or unpleasant surprises. That's why folks like me, who startle easily, are drawn to it.

Still, the world can be a scary place. And we, as runners, do operate in the world. That's where the roads are.

So what's the scariest thing that's ever happened to you on a run or in a race? Have you ever been accosted? Nearly creamed by a bus? Chased by a clown?[5]